TABLE 2.

Antibiotic resistances^a

Antibiotic (amt)	Zone of inhibition (mm)b
	B. subtilis PY79	Bactisubtil	Subtyl	Biosubtyl “Dalat”	Domuvar	Lactipan plus
Neomycin (30 μg)	27–30	25–26	23–26	25	43–46	15–23
Streptomycin (10 μg)	15–16	14–16	19–21	16–18	19–24	16–19
Rifampin (5 μg)	19–24	16–18	15–20	18–26	36–40	30–31
Kanamycin (30 μg)	31	23–26	21	26–30	45	26–27
Penicillin G (1 U)	25–29	26–32	<9	<8	15–20	20–26
Compound sulfonamides (300 μg)	24–28	15–27	21	25	32–40	28–31
Tobramycin (10 μg)	28	24–27	19–21	25–30	35	24–30
Novobiocin (30 μg)	24–26	20–24	22–23	18–25	14	24–25
Tetracyline (10 μg)	15–18	6	21–26	22–30	18–20	15
Chloramphenicol (50 μg)	27–32	12–14	29–30	28–33	14–15	29–30
Spectinomycin (10 μg)	13–15	10–14	<12	9–10	27–29	7–9
Erythromycin (15 μg)	29	19–23	25–29	31	13	27–28
Ampicillin (25 μg)	30–31	33–38	10–14	11–15	30–32	29–31
Lincomycin (15 μg)	16–17	22–27	16–20	19–21	6	25–27

^aAntibiotic-immpregnated discs (6 mm in diameter) were used to evaluate antibiotic sensitivities as described in Materials and Methods 

^bZones of inhibition (diameter) from three individual experiments are given, with a value of 6 mm representing no zone of inhibition.